It's not uncommon to feel some sort of loyalty to people you are related to, regardless of how well you get on. For example you could hate your sister but know that you'd always back her up out of some built in sense of duty. What is this sense of duty? Why do we feel it? Is it just something to do with our nature, that we feel the desire to protect people with the same genes from a survival point of view. For me, blood isn't thicker than water. Some of the closest relationships I have are with people who I actually have no biological tie to. The person who I consider to be my father has no blood relationship with me and yet our relationship is one of the strongest I have with anyone. Similarly growing up I had lots of cousons but there were 2 in partcular who I go on with really well. I eventually realised that we weren't actually related, it was just their parents were my god parents and so they just said that we were "like cousons" :lol: Years on though I still have a great relationship with those "cousons" whereas I have lots of real cousons who I never bother with. I think relationships can be given a large amount of strength regardless of biology. It's all about the impact people have on your lives and the people that you choose as friends can also be like family if your close enough. Don't get me wrong I also have very good relationships with real family members but I don't think any relationship can be expected to thrive based on blood alone. So what do you guys think? Is blood thicker than water for you?